The Loadings Which Act on a Romanian Jack-up Structure in the Black Sea

On a jack-up structure acts static loads (own weight, machines, installations and materials weight) and dynamic loads (waves, wind, marine currents, earthquake, operating installations). The authors led their analysis on the determining the dynamic loads produced by waves, wind and marine currents, in the Black Sea, because these are the main source in collapse of the structure. The structural model of the Romanian jack-up is proposed by the authors and respects strictly the geometrical and mechanical characteristics of the real structure. For the evaluation of the hydrodynamic loads on the Romanian jack-up cylindrical beams, the authors used the MIRAF program which calculates the wave loads together with the action of the currents. For the evaluation of the wind loads on the Romanian jack-up model the authors used deterministic relation based on Morison formula.